Question: who aircraft family for item operated of Air India?
Paraphrase: Air India operated which aircraft unit?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q69906 wdt:P121 ?obj . ?obj wdt:P31 wd:Q15056993 } 
Answer: Boeing 747-400, Boeing 777, Boeing 787 Dreamliner, Airbus A320 family